Sun giving way to increasing clouds
Rises at 6:10 AM with 14:21 of sunlight, then sets at 8:31 PM
Rises at 12:35 PM with 11:07 of moolight, then sets at 11:42 PM
Aug 30, 2012; 5:00 AM ET If you're longing to ski the Alps or swim in the Great Barrier Reef, you may be running out of time. A changing climate may beat you to the punch line. Valerie Smock has more.